Citation: 
Walitt B, Fitzcharles MA, Hassett AL, Katz RS, Häuser W, Wolfe F. The longitudinal outcome of fibromyalgia: a study of 1555 patients. J Rheumatol. 2011; 38(10):2238-46.
Authors: 
Fred Wolfe, MD
Afton Hassett
Brian Walitt MD MPH
PD. Dr. Winfried Häuser
Robert S Katz, MD
Journal: 
Journal of Rheumatology
Publication date: 
2011
PubMed ID: 
PubMed link